/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 晓星航
 * Date: 2023-08-07
 * Time: 10:17
 */
public class Main {
    public static void main(String[] args) {
        byte[] buffer = new byte[1024];
        for (int i = 0; i < buffer.length; i++) {
            buffer[i] = (byte) i;
        }
        int len = 40;
        for (int i = 0; i < len; i++) {
            System.out.printf("%x\n",buffer[i]);
        }
        System.out.println("Hello world!");
    }
}